40005275797 has 2 divisors, whose sum is σ = 40005275798. Its totient is φ = 40005275796.

The previous prime is 40005275771. The next prime is 40005275803. The reversal of 40005275797 is 79757250004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36140291236 + 3864984561 = 190106^2 + 62169^2 .

It is a cyclic number.

It is not a de Polignac number, because 40005275797 - 2¹⁵ = 40005243029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40005273797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002637898 + 20002637899.

It is an arithmetic number, because the mean of its divisors is an integer number (20002637899).

Almost surely, 2^40005275797 is an apocalyptic number.

It is an amenable number.

40005275797 is a deficient number, since it is larger than the sum of its proper divisors (1).

40005275797 is an equidigital number, since it uses as much as digits as its factorization.

40005275797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 617400, while the sum is 46.

The spelling of 40005275797 in words is "forty billion, five million, two hundred seventy-five thousand, seven hundred ninety-seven".